Car-door.



S. F. MINTON & R. E. MCCLELLEN.

' CAR DOOR.

APPLlcAlon FILED MAR. 2F. 1915.

Menta@ De... 25,1917.

2 SHEETS-SHEET 2 TED STATES .PATENT GFFCE.

STEVEN F. lVIINTON AND ROBERT, E MQCLELLENL QE GEQDINQS,

GAR-Doon.

Applicationiled 1MM-c3127, 1315.

To; aZZaUL'o-mf t may. concern Be it knownv that we, SrnvnN. F. MrNToN andj ROBERT E'. McCLnLLnN, citizens of the United States, residing. at Giddings, in the county of Lee and State of Texas, have in vented certain new and useful Improvements in Car-Doors;` and we do hereby de -4 clare the following to be a full, clear, and

exact description of the invention, Such as.

will enable others skilled in the art to whichit appertains tomake and use the same.

This invention'relates to car doors and more particularly to a sliding door espeA cially designed for use on box cars.

The invention has for its object to provide a car door of improved and simplified construction, embodying means for forming an eiiicient rain-proof closure when the door is moved to closed position.

Another object is to, provide novel and efficient means tor slida-bly' supporting the door.

Another objectis to provide a lockingbolt adapted to lock the door in various positions.

Wvith these and other objects in View, the invention consists in the novel construction, arrangement and formation or' parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawings, in which:

Figure 1 represents a fragmental side elevation of a car, showing the improved door,

Fig. 2 represents a fragmental side elevation of the door, partly in section,

Fig. 3 represents a tragmental detail sectional view on the line 3-3 of Fig. 1,

F ig. 4 represents a fragmental detail sectional view on the line 4-1 of Fig. 1,

Fig. 5 represents a horizontal sectional view through the door and a portion of the car, illustrating the locking bolt in detail,

Fig. 6 represents a detail View. similar to Fig. 5. illustrating the door partially open,

Fig. 7 represents a top plan View, partly broken away, of the lower supporting rails or tracks for the door.

F ig. S represents a fragmental sectional view through the door, illustrating the supporting wheel therefor, and

Fig. 9 represents a transverse sectional view on the line 9-9 of Fig. 6.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts .throughout the several Specification of Letters Patent.

Patented; Deei 1.917

Seria-LND. 17.4.7.7:

views, the numeral 10: indicates` the body of is; slidable longitudinally within the olfset lower Longitudinal edge` of th-eupper; hori-V zout-al guide. and sealing strip. 12.

A plurality off circumferentially grooved rollers ory wheels 1-6 are rotatably mounted inV th-elower portion of; the doory 151. and prof. jeetdistance belowthe lower longitudinal edge of the latter; A rail track` 1 7 is se-.. cured. tothe towers horizontal member 0f the door frame 11 in spaced relation thereto, and the upper longitudinal edge. thereoi is rounded to tit within the peripheral groove ot the wheels 16 movably supporting the door 15. A guard rail 18 is secured parallel and in spaced relation to the supporting track rail 17 and is partially inclosed by and slidably received within the angular lower extremities of straps 19 secured to the lower portion of the door 15. The `guard rail 18 is ot' considerably greater width than the track rail 17 providing a guard for the latter and engages the outer surface of the door for preventing outward swinging movement of the latter. The rails 17 and 18 are supported by bolts 17a, which are anchored in the door frame 11, and spacing members 18a are positioned upon the bolts 17a between the track 17 and frame 11, and between the track rail and guard rail to maintain the parts in properly spaced relation.

A vertically disposed L-shaped strip 2O is secured to the vertical member of the door trame 11 opposite that which carries the strip 12 and is adapted to coperate with the vertically disposed strip 21 secured to the inner surface of the door 15.

A spring plate 22 is secured in horizontal position to the door 15 and the free end thereof is looped, as at 23, to provide an adequate handle whereby the end thereof may be swung outwardly from the door. A U-shaped strap 24 is secured to the door and incloses the spring plate 22 for limiting the outward movement thereof. Adjacent its free end a locking bolt 25 is secured to the spring plate 22, extends inwardly through a suitable aperture formed in the door 15 and is adapted to engage within any one of a plurality of notches or recesses 26 formed in a horizontally disposed rail 27 secured to the car body 10. The notches or recesses E2G are so arranged as to receive the bolts 25 and lock the door 15 when the latter is moved to either open or closed position, and also in several intermediate positions, and it will be understood that the tension of the spring 22 normally retains the bolt 25 in engagement with the outer surface of the horizontal rail 27 or one of the notches 26.

vWhat we claim is 1. In combination, a door frame, a relatively thin track rail supported in spaced parallel relation to the lower horizontal member of said door frame, a guard rail of considerably greater width than the track rail7 projecting above and below and supported in spaced parallel relation to the latter, a slidable door extending downwardly between the lower horizontal member of the door frame and said guard rail, rollers carried by said door adapted to travel upon the track rail, means for guiding the upper end of said door, and means for retaining said door in frictional engagement with the inner surface of the guard rail to provide a seal.

2. In combination, a door frame, a relatively thin track rail arranged in parallel relation to the lower horizontal member of the. door frame. a guard rail of considerably greater width than the track rail projecting above and below the latter, supporting bolts extending through the rails and anchored in the door frame, spacing members positioned upon the bolts and arranged between the door frame and track rail, and between the track rail and guard rail to maintain the parts in spaced parallel relation, a slidable door extending downwardly between the lower horizontal member of the door frame and guard rail, and grooved rollers carried by said door adapted to travel upon the track rail, means for guiding the upper end of the door, and means for retaining said door in position between the guard rail and door frame.

In testimony whereof we atlix our signatures in presence of two witnesses.

STEVEN F. MINTON. ROBERT E. MGCLELLEN. l/Vitnesses:

L. D. WINTER, HERMAN MOERBE.

Cop-ies of this patent may be obtained for ve cents each, by adressing the Commissioner of Yatents. Washington, D. G. 

